In this guide, you will come to know how to get DNA Keys to open the Strongboxes in Marvel’s Avengers.
The DNA keys are used to open special DNA strong boxes in the game, and you can find these keys throughout the vault missions. It is difficult to find these DNA keys, and you can only get these keys in villain sectors. You also have to complete your daily mission to hunt the abomination or Toss Monster and then get the DNA key. You can also complete the elite versions of those villain sectors to find more DNA keys.
When you open the boxes with the DNA key, you will get upgrade modules that will help you upgrade your gear. So you have to make sure to do your daily missions for your faction.